dmcn.email: the first email service built on the DMCN protocol

01 · New senders

You decide who reaches you.

Mail from someone new arrives with the sender showing and the message sealed until you decide.

Its formatting, images and attachments stay closed until you decide what you want to do. You can trust it, block it, read it as plain text first, or delete it. Ordinary email from Gmail or Outlook waits at the same gate.

Trust a sender once and their mail opens from then on.Unless their key changes or an ordinary email from them fails its checks; then it waits at the gate again.
Blocking a DMCN sender follows their key.So a fresh address on that key stays blocked.

A message from a new sender with every check passed, hidden until you decide, with buttons to trust, view as plain text, delete or block

02 · Senders

See who mail is really from.

Mail between DMCN inboxes is signed by the sender and checked before it opens. Ordinary email shows its SPF, DKIM and DMARC results in plain words.

Between DMCN inboxes every message is signed with the sender’s key, and your mail client checks that signature against the key the sender has published. If they disagree, you are warned before anything in the message opens.

For ordinary email you see the checks the sender’s domain publishes (SPF, DKIM and DMARC) in plain words: passed, failed or nothing to check. A message that fails is shown as plain text, its links spelled out and unclickable, and its formatting stays off unless you confirm.

A message claiming to be from Your Bank: origin, domain and sender checks failed, a red warning that someone used their address, and the body as plain text

A message from Theo Okafor, a trusted contact, with sender, domain, origin and encryption checked — **A DMCN contact, checked against the key their domain lists for them.**Signed by their key, and checked before it opens.

Ordinary email from Maria Lindqvist with origin, domain and sender checks passed — **Ordinary email that passed its domain’s checks, labelled as regular email.**Its domain’s checks held, and the label says how it came in.

Key checks only work between DMCN inboxes, so invite the people you write to most.

03 · Everyone else

It works with everyone’s email.

Write to anyone on Gmail, Outlook or any other provider from day one, and their replies land in the same inbox.

It’s fine if nobody you know uses DMCN yet.

mia@dmcn.emailWrites as usual, from the same composer.
dmcn.emailSends it on as ordinary email, signed so their provider can check where it came from.
sam@gmail.comGets a normal email and replies to it like any other.

Once a message leaves DMCN it is ordinary email, readable by the servers it passes through.End-to-end encryption covers mail between DMCN inboxes, and every message tells you which kind it is.

04 · Privacy

We can’t read mail between DMCN inboxes.

Mail between DMCN inboxes is encrypted on your device, subject included, and our servers hold no key that opens it.

Every message you send is encrypted on your device before it leaves, subject line included. Mail to another DMCN inbox stays sealed until your recipient’s device opens it: our servers store and pass it on, and hold no key that opens it. Mail to an ordinary address is sealed to our bridge, which sends it on as ordinary email.

Your keys stay on your devices

Our servers never hold a copy of your keys that they could open.

When you add a device, your keys travel to it sealed to a one-time key only that device holds, and the sealed copy is deleted once it arrives.

We see who mail is for, who sent it, when, and roughly how big it is

Not what mail between DMCN inboxes says. Ordinary email is readable as it crosses over.

To deliver your mail, our servers see which mailbox a message is for, who it is from, and roughly when. Sizes are rounded up, so only a rough size shows. The security page names each limit we know of.

No ads, tracking or scanning in your mail

Your subscription pays for the service, so your mail has nothing to offer us.

Remote images stay off by default and no read receipts go out, so opening a message tells its sender nothing. You can let images load for senders you trust if you choose to.

05 · Every day

It’s just email, and a good one.

Labels, folders, search, attachments, dark mode and notifications, on your laptop and your phone.

Your address ends in dmcn.email, dmcn.me or dmcn.io.

Searching for invoice finds two messages, matched by words inside them — **Search that runs on your device**Find mail by a word inside it, a sender or an attachment name. The index is built and kept on your device.

The inbox in the dark theme — **Dark mode, notifications, your phone**Add it to your phone’s home screen from the browser and get a notification when new mail arrives.

A message filed under Finance with a PDF attachment — **Labels, folders, attachments**File mail the way you already do. Attachments are encrypted with the message they came in.

Approving a new laptop after typing the last four digits of the code on its screen — **Your devices hold your keys**Unlock with a passkey. Add a phone or laptop by typing the last four digits its screen shows.

Settings listing this browser and Mia’s laptop, with a button to remove the laptop — **See every device your mailbox opens on, and remove any you don’t trust**Remove it from another device you still have, and it can no longer open your mailbox.

Settings listing a shared alias and a throwaway address — **Aliases and throwaway addresses**Add aliases, or a throwaway address with its own key and no public link to you. Bring your own domain on any plan.

06 · Pricing

You’re the customer, and you can leave.

Every plan has every feature, and paying yearly is cheapest. If you need more room, move to a bigger storage plan. Start with a 30-day free trial, no card needed.

dmcn.emailTwo months free, billed yearly

$30a year

That’s $2.50 a month for every feature and 4 GB of encrypted storage. Paid monthly, it’s $3 a month.

Need more room?

Move to more storage any time. Every feature stays the same, and paying yearly saves two months here too.

25 GBPlus

$80 a year$6.67 a month, or $8 billed monthly

100 GBPro

$160 a year$13.33 a month, or $16 billed monthly

No free plan, and every new sender waits for you

Free trials and demo addresses run out and send very little, and every new sender waits for your approval.

That includes a new address from someone you blocked: a block follows their key, and a new key starts back at the gate. Charging every account also means nobody else is paying for yours. There are no advertisers, and we have no reason to make money from your mail any other way.

You can leave with your keys

Export an encrypted backup of your keys any time.

The protocol your mail runs on is published at dmcn.dev, and anyone can build on it or run it. You never need our permission to go.

Pick your address and see who gets in.

Keep your old email running alongside while you try it.

Start your 30-day free trial

No card needed for the trial. Plans from $3 a month.

The first email service built on the DMCN protocol